2016 Mercedes-Benz C 2.1L Diesel · LS66 CWG

The most recent DVSA examination on 30 October 2025 recorded a pass with no defects or advisories, and this clean result is consistent with the preceding tests in 2024 and 2022, all of which returned pass certificates without any recorded advisories. The only anomaly in the history is a fail on 30 September 2023 immediately followed by a pass on the same date, which strongly suggests a presentation failure that was rectified on site or via a minor repair carried out between tests, rather than a serious underlying defect. Overall the maintenance trend appears stable and well-managed, with no escalation of advisory items or repeat failures across a three-year window. With 121,137 miles accumulated over ten years, this C-Class is running at approximately 12,114 miles per year, which is noticeably above the national average and points to genuinely high usage rather than the low-mileage deterioration often seen on vehicles of this age. Sustained annual mileage of this level accelerates wear on mechanical consumables, including brake pads and discs, clutch components (if applicable), suspension bushes, coil springs, anti-roll bar links, and drivetrain mounts. It also raises the likelihood that items such as the timing chain, turbocharger, and dual-clutch or automatic transmission have already been heavily worked, so any irregular idling, hesitation, or clonks on overrun should be treated seriously during a road test. Despite the clean MOT record, a ten-year-old Mercedes with this mileage warrants a hands-on physical inspection before purchase, as the test does not cover many age-related concerns. Check all four tyres closely for uneven shoulder wear, sidewall perishing or cracking from age, and ensure they are of matching brand and specification, as the C-Class is sensitive to geometry deviations. Examine the brake discs for lipping, hot-spots, or surface corrosion that may cause pedal shudder under hard application, and confirm the calipers are not binding by verifying the vehicle rolls freely on a flat surface after being released from standstill. Inspect the underside for fluid weeping from the engine sump, power steering rack, and rear differential or transmission, paying particular attention to corroded subframe mounting points, which are a known area on this model. Additional age-appropriate checks should include a 12V battery test under load, as Mercedes electrical systems are intolerant of weak cells and can produce obscure warning messages if voltage drops below specification. Verify the service book history, ensuring brake fluid and coolant have been changed at the recommended two and four-year intervals respectively, and that the most recent service included a fresh engine oil and filter change with the correct MB-approved grade. On the road, listen for any suspension clonks or knocking over broken surfaces, which would indicate worn lower control arm bushes or drop links, and confirm the auto gearbox or manual shift delivers smooth, timely changes without judder or hesitation. Finally, request a diagnostic read with STAR or a compatible tool to check for historic fault codes in modules such as the AdBlue system, injectors, and air suspension (if fitted), as these will not appear on an MOT but are common expense areas on a high-mileage C-Class of this vintage.